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  1. bennettflys

    HDG mode won’t work - STEC 50

    Comanche 180 with STEC 50 (all steam gauges) HDG mode worked fine when we purchased the plane a year ago. After a few flights there were times that the autopilot would not respond to the HDG BUG, and sometimes it would. Now, in heading mode it doesn’t respond at all to the HDG bug. Our only...